Home / 119,207.16-164,212.11-102,156.66

Finding the Fourth Proportional to 119,207.16, 164,212.11 and 102,156.66

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Solution

The fourth proportional to 119,207.16, 164,212.11 and 102,156.66 is: 140,724.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,207.16 : 164,212.11 = 102,156.66 : x
  2. Step 2: Convert to fraction form
    119,207.16/164,212.11 = 102,156.66/x
  3. Step 3: Cross multiply
    119,207.16x = 164,212.11 × 102,156.66
  4. Step 4: Simplify right side
    119,207.16x = 16,775,360,689.15
  5. Step 5: Solve for x
    x = 16,775,360,689.15/119,207.16
  6. Step 6: Final answer
    x = 140,724.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.